Bake and cool cookies. For "Love" cookie, use Red Sparkle Gel to outline imprinted message and heart. If using Comfort Grip Heart Cutters, use Red Sparkle Gel to outline freehand design. Let completely dry. For pink cookie top (with plain cookie bottom), brush sides with Red Sparkle Gel and roll in Red Sparkling Sugars. Use disposable decorating bag fitted with tip 1 and red icing to outline hearts and white icing to pipe-in center of hearts. For double heart plain dough cookie, brush sides of top cookie with Red Sparkle Gel and roll in Valentine Nonpareils; brush sides of bottom cookie with gel and roll in Red Sparkling Sugars. Use tip 1 to outline and pipe in red heart and pink heart; position Jumbo Hearts Sprinkle Decorations on top.